1h8u
From Proteopedia
CRYSTAL STRUCTURE OF THE EOSINOPHIL MAJOR BASIC PROTEIN AT 1.8A: AN ATYPICAL LECTIN WITH A PARADIGM SHIFT IN SPECIFICITY
Overview
The eosinophil major basic protein (EMBP) is the predominant constituent of the crystalline core of the eosinophil primary granule. EMBP is directly implicated in epithelial cell damage, exfoliation, and bronchospasm in allergic diseases such as asthma. Here we report the crystal structure of EMBP at 1.8 A resolution, and show that it is similar to that of members of the C-type lectin superfamily with which it shares minimal amino acid sequence identity (approximately 15--28%). However, this protein lacks a Ca(2+)/carbohydrate-binding site. Our analysis suggests that EMBP specifically binds heparin. Based on our results, we propose a possible new function for this protein, which is likely to have implications for EMBP function.
About this Structure
1H8U is a Single protein structure of sequence from Homo sapiens. Full crystallographic information is available from OCA.
Reference
Crystal structure of the eosinophil major basic protein at 1.8 A. An atypical lectin with a paradigm shift in specificity., Swaminathan GJ, Weaver AJ, Loegering DA, Checkel JL, Leonidas DD, Gleich GJ, Acharya KR, J Biol Chem. 2001 Jul 13;276(28):26197-203. Epub 2001 Apr 23. PMID:11319227 Page seeded by OCA on Fri May 2 18:34:43 2008
